Erick taylor



(No Model.)

A. W. S. DAVIS.

ANGLE HANGER FOR MECHANICAL TELEPHONELINES.

Patented July 5, 1887.

N FETERS. Fhnlo-L'flbogmphur. WashinglnmQC.

UNITED STATES I PATENT OFFICE.

ARTHUR V. S. DAVIS, OF LOWELL, MASSACHUSETTS, ASSIGNOR TO FRED- ERICK TAYLOR,.OF SAME PLACE.

ANGLE-HANGER FOR MECHANICAL-TELEPHONE LiNES.

SPECIFICATION forming part. of LettersPatent No. 365,798, dated July 5, 1887.

Application filed Ocober 18, 1884. Serial No. 145,832. (No model.)

10 all whom it may concern:

Be it known that I, ARTHUR W. S. DAVIS, a citizen of the United States,residing at Lowell, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvementin Acoustic Telephones,of which the following is a specification.

My invention relates to means of supporting and insulating the transmitting-wires of such telephones and of lessening the vibrations caused by atmospheric disturbances; and it consists in the devices and combinations hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a diagram of a transmitting-wire supported by brackets secured to the wall of a room or building, and an acoustic telephone connected to said wire. Fi 2 is like Fig. 1, except that the corner bracket is a modification of the one shown in Fig. 1; Fig. 3, an enlarged plan of the double corner bracket shown in Fig. 1, the holder being in section',and one arm being wrapped with an insulating sub stance and the other provided with a ball'or weight; Fig. 4, a plan of the upper bracket shown in Fig. 2, the holder being in section. Fig. 5 is adiagram showing how the bracket shown in Figs. 4 and 6 and the transmittingwire may be bent through an angle of one hundred and eighty degrees. Fig. 6 is a modification of the bracket shown in Fig. 4, and Fig. 7 a diagram showing how the guyis provided with an insulator.

Ais the outer or inner wall of a room or building; WV, the transmitting-wire; C, an acoustic or mechanical telephone of any approved construction. The wire W at the bends thereof is supported by guys L, of any vibratory material, which surround said wire W, and which also surround or are secured to a straight metallic (preferably wrought-iron) bar, B. A holder, H, of lead, britannia, or other similar comparatively insonorous metal or material,is cast arou ud or otherwise secured to the end of the bar 13, such holder being so bolted by bolts or screws 71', passing through the holder, out of contact with said bar, to the wall A as to stand at an angle therewith, as shown. If desired, two such bars 13 may be secured in the same holder H at about right angles to each other, as shown in Fig. 3, and the holder being provided with an eye, E, (which may be an ordinary screw-eye, as shown, the shank of which is cast or screwed into said holder,) to engage with a hook or loop, I, secured to the wall. The guys L are about five inches apart and of such lengths as to allow the wire to be carried around a corner without sharp angles, all the angles being very obtuse, in order not to interfere with the vibrations-of the wire. The guys should be at about equal distances apart, and around each guy may be a sleeve, J, of lead or similar material, which sleeve is held in place at any desired distance from the ends of said guys by set-screws j j, Fig. 7, which turn radially in said sleeves and thrust against said guys.

I have found that the metallic sound so generally noticeable in acoustic telephones may be almost, if not entirely, overcome by winding the supportingbars with strips of heavy material which does not readily vibrate. The same object may be attained by securing a ball, D, of such material to the free end ofthe rod. For this purpose I prefer to use strips of 'sheet-lead,or aball of lead, as I have found these to answer the purpose fully.

I claim as my invention 1. The combination, with an acoustic-telephone wire, of the bar and a holder of insonorous material secured thereto, and guys connecting said wire and said bar, as and for the purpose specified.

2. The combination, with an acoustic-telephone wire, of the bar and a holder of lead secured thereto, and guys connecting said wire and said bar, as and for the purpose specified. 1

3. The combination, with an acoustic-telephone wire, with the transmittingwvire and guys, of insulators ofinsonorous material, and

set-screws turni-ngin said insulators and thrusting against said guys, as and for the purpose specified.

4. The combination, with an acoustio-telephone wire, of the'bar and means, substantiaily as described, of insulating said bar by Weighting the same with lead, and guys con necting said wire and said bar, as and for the purpose specified.

5 5. The combination, with an acousticieiephone wire, of the bar and means, substantially as described, of insulating said bar by wrapping with sheet-lead, and guys c0nnecting said wire and said bar, as and for the purpose specified.

ARTHUR \V. S. DAVIS.

Vitnesses:

ALBERT M. MOORE, HERBERT R. \VH I'm. 

